Bug#318348: xserver-xorg: Unichrome driver will only use 640x480 on KM400

[Tom Huckstep <tom-debian-bugs@jaguarpaw.co.uk>]

Package: xserver-xorg
Version: 6.8.2.dfsg.1-2
Severity: normal
Tags: patch


There's a bug in the Unichrome driver code which means high resolution video
modes are not available.  There's a simple fix given to me by Luc Verhagen
of the Unichrome development team:

In the file programs/Xserver/hw/xfree86/drivers/via/ (provided by
patches/000_stolen_from_unichrome.sf.net.diff), in the function
ViaGetMemoryBandwidth:

    case VIA_KM400:
       if (pVia->ChipRev < 0x8F)

should read:

    case VIA_KM400: 
       if (pVia->ChipRev < 0x84) 


Making this change and recompiling has solved the problem for me.

Cheers,

Tom